Biomedical subjects
W Verkruysse
Publications and source records attributed to W Verkruysse.
Treatment of melanotic spots in the gingiva by argon laser.
Dark colored areas, ranging from light blue to black, often occur in the gingiva as a result of the abnormal deposition of melanin. These can develop at any age, creating an unesthetic appearance. The effective elimination of these melanotic areas can be accomplished by treatment with monoline 514 nm green light (1.5 W, 300 milliseconds, 0.5-mm spot size) produced by an argon laser. Restoration of the mucosa is optimal, giving excellent esthetic results.
A simple method to avoid depressed scarring in laser treatment of elevated lesions.
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A simple, useful improvement of an eye protector.
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Monoline argon laser (514 nm) treatment of benign pigmented lesions with long pulse lengths.
A dichroic filter was adjusted in order to make use of the green line of an argon laser for the treatment of pigmented lesions (actinic and senile lentigo, ephelis, café-au-lait marks and spilus nevus). Using a power of 1.5 W, a spot size of 0.5 mm and pulse lengths of 200 or 300 ms, satisfactory elimination of 620 pigmented cutaneous lesions was achieved. Although the pulse lengths used were much longer than the thermal relaxation time of the melanosomes, the histology after treatment showed little damage of adjacent structures. Good restoration of the epidermis and a return of normal pigmentation led to excellent cosmetic results, with few complications.